Echeveria plant named &#39;TSAECH1710&#39;

ABSTRACT

A new and distinct  Echeveria  plant named ‘TSAECH1710’ which is characterized by improved vigor, obovate succulent foliage arranged in a basal rosette, glaucous grey foliage which is suffused pink and margined with a dark, vibrant pink at and towards the apex, as well as the stability of these characteristics from generation to generation.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Community Plant Variety Rightsapplication number 2017/2836, filed Nov. 8, 2017, which is hereinincorporated by reference.

Latin name of the genus and species: The Latin name of the genus andspecies of the novel variety disclosed herein is Echeveria hybrid.

Variety denomination: The inventive variety of Echeveria hybriddisclosed herein has been given the variety denomination ‘TSAECH1710’.

BACKGROUND OF THE INVENTION

Parentage: ‘TSAECH1710’ is a hybrid seedling selection resulting fromthe controlled pollination of an unnamed Echeveria pulidonis x Echeveria‘Perle von Numberg’ hybrid plant (not patented), the seed parent, withan unnamed Echeveria lilacina plant (not patented), the pollen parent.The crossing was made by the inventor in the winter of 2013 at acommercial greenhouse in Heerhugowaard, the Netherlands. In the autumnof 2014, one seedling was observed which exhibited unique growth andfoliage characteristics. The seedling was isolated for furtherevaluation in order to confirm the distinctness and stability of thecharacteristics first observed. Upon confirmation of distinctness andstability, ‘TSAECH1710’ was selected for commercialization in the winterof 2014.

Asexual Reproduction: Asexual reproduction of the new cultivar‘TSAECH1710’, by way of rooting leaf cuttings, was first initiated inthe summer of 2015 at the inventor's commercial greenhouse inHeerhugowaard, the Netherlands. Through five subsequent generations, theunique features of this cultivar have proven to be stable and true totype.

SUMMARY OF THE INVENTION

The cultivar ‘TSAECH1710’ has not been observed under all possibleenvironmental conditions. The phenotype may vary somewhat withvariations in environment such as temperature, day length, and lightintensity, without, however, any variance in genotype. The followingtraits have been repeatedly observed and are determined to be the uniquecharacteristics of ‘TSAECH1710’. These characteristics in combinationdistinguish ‘TSAECH1710’ as a new and distinct Echeveria cultivar:

1. ‘TSAECH1710’ exhibits improved plant vigor and a fast rate of growth;and

2. ‘TSAECH1710’ exhibits obovate succulent foliage which is curvedupwards and arranged in a basal rosette; and

3. ‘TSAECH1710’ exhibits foliage which is upright at the center of therosette, becoming progressively more relaxed towards the outer whorls ofthe rosette; and

4. ‘TSAECH1710’ exhibits glaucous grey foliage which is suffused pinkand margined with a dark, vibrant pink at and towards the apex.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, an exemplary plant of‘TSAECH1710’ grown in a commercial greenhouse in Heerhugowaard, theNetherlands. This plant is approximately 9 months old, shown planted ina 9 cm container.

FIG. 2 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, the typical foliagearrangement of ‘TSAECH1710.

FIG. 3 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, the typical mature foliageof ‘TSAECH1710’.

BOTANICAL DESCRIPTION OF THE PLANT

The following observations and measurements made in August of 2018describe averages from a sample set of six specimens of 9 month old‘TSAECH1710’ plants grown in 10.5 cm nursery containers at commercialgreenhouse in Heerhugowaard, the Netherlands. Plants were produced usingconventional greenhouse production protocols for Echeveria plants whichconsisted of minimal irrigation and fertilizer applications, andchemical pest and disease control measures against mealy bug andBotrytis as required. Plants were grown under approximately 50 percentshade after propagation and later exposed to full sun once they began tomature. No photoperiodic treatments or artificial light was given to theplants.

Those skilled in the art will appreciate that certain characteristicswill vary with older or, conversely, with younger plants. ‘TSAECH1710’has not been observed under all possible environmental conditions. Wheredimensions, sizes, colors and other characteristics are given, it is tobe understood that such characteristics are approximations or averagesset forth as accurately as practicable. The phenotype of the variety maydiffer from the descriptions set forth herein with variations inenvironmental, climatic and cultural conditions. Color notations arebased on The Royal Horticultural Society Colour Chart, The RoyalHorticultural Society, London, 2015 (sixth edition).

A botanical description of ‘TSAECH1710’ and comparisons with the parentplants and closest known comparator are provided below.

-   Plant description:    -   -   Growth habit.—Succulent perennial with foliage growing in a            non-branched basal rosette.        -   Plant shape.—Flattened globular.        -   Height from soil level to top of foliar plane.—6.0 cm.        -   Plant spread.—Average of 13.0 cm.        -   Growth rate.—Moderate.        -   Plant vigor.—Moderate.        -   Propagation.—Type — Leaf cuttings. Time to initiate rooting            — Approximately 21 days at 18 degrees Celsius. Crop time —            Approximately 35 weeks to produce a marketable plant in an            11 cm container.        -   Disease and pest resistance or susceptibility.—Neither            resistance nor susceptibility to typical Echeveria pests and            diseases has been observed.        -   Environmental tolerances.—Adapt to, at least, USDA Zones 10            to 12 and temperatures as high as 40 degrees Celsius;            moderate tolerance to rain yet drought tolerant once            established; high tolerance to wind.-   Root system:    -   -   General.—Fine, well-branched fibrous roots.-   Stems:    -   -   Branching habit.—Leaves in a non-branching basal rosettes;            no main branches or lateral branches present.-   Foliage:    -   -   Arrangement.—Rosette.        -   Division.—Simple.        -   Attachment.—Sessile.        -   Quantity.—Approximately 54 leaves per rosette.        -   Shape.—Obovate.        -   Dimensions.—5.6 cm long, 2.3 cm wide, and 0.7 cm thick, on            average.        -   Aspect.—Very slightly concave and slightly to moderately            curved upward.        -   Attitude.—Younger foliage near the center of the rosette is            very upright; foliage becoming progressively more relaxed            towards the outer whorl of the rosette.        -   Apex.—Apiculate.        -   Base.—Cuneate.        -   Margin.—Entire; not undulated or lobed.        -   Pubescence, texture and luster of the adaxial            surface.—Glabrous, smooth, and matte; moderately glaucous.        -   Pubescence, texture and luster of the abaxial            surface.—Glabrous, smooth, and matte; moderately glaucous.        -   Color.—Juvenile foliage, adaxial surface — Yellow-green,            nearest to RHS 148B, and fading lighter towards the base,            nearest to RHS 147D; suffused with greyed-green towards the            apex, nearest to RHS 197A; narrowly margined greyed-red at            and near the apex, nearest to RHS 181B; the epicuticular            glaucous wax covering the leaf surface is greyed-green,            nearest to N189C. Juvenile foliage, abaxial surface —            Yellow-green, nearest to RHS 148C, and becoming a light            shade of greyed-green towards the base, nearest to RHS 194C;            suffused with a darker shade of greyed-green towards the            apex, nearest to RHS 197A; narrowly margined greyed-red at            and near the apex, nearest to RHS 181A; the epicuticular            glaucous wax covering the leaf surface is greyed-green,            nearest to N189C. Mature foliage, adaxial surface — Nearest            to in between yellow-green, RHS 148A, and greyed-green, RHS            197A, and fading lighter towards the base, nearest to RHS            195B; narrowly margined greyed-red at and near the apex,            nearest to RHS 181A; the epicuticular glaucous wax covering            the leaf surface is greyed-green, nearest to N189C. Mature            foliage, abaxial surface — Greyed-green, nearest to RHS            197A, and lightly suffused with yellow-green, nearest to RHS            148A; fading lighter towards the base, nearest to RHS 195B;            narrowly margined greyed-red at and near the apex, nearest            to RHS 181A; the epicuticular glaucous wax covering the leaf            surface is greyed-green, nearest to N189C.        -   Venation.—No venation is visible.        -   Petiole.—No petiole; leaves are sessile.

INFLORESCENCE

No flowering has been observed to date.

COMPARISONS WITH THE PARENT PLANT AND CLOSEST KNOWN COMPARATOR

The seed parent, an unnamed Echeveria hybrid plant (not patented), is nolonger in cultivation or otherwise available therefore a comparison isnot possible.

Plants of the new cultivar ‘TSAECH1710’ differ from the pollen parent,an unnamed Echeveria lilacina plant (not patented), in the followingcharacteristics described in Table 1 below.

TABLE 1 Characteristic ‘TSAECH1710’ Pollen parent Rate of growth. Fasterthan the pollen Slower than parent. ‘TSAECH1710’. Leaf width. Narrowerthan the Wider than pollen parent. ‘TSAECH1710’. General colorationGreyed-green, lightly Very light grey, of the suffused pink, and nearlywhite, mature foliage. margined with a vibrant and suffused pink. pinkat and near the apex.

COMPARISONS WITH THE CLOSEST KNOWN COMPARATOR

Plants of the new cultivar ‘TSAECH1710’ differ from the closest knowncommercial comparator, the common form of the species Echeveria pelusida(unnamed and not patented), in the following characteristics describedin Table 2 below.

TABLE 2 Characteristic ‘TSAECH1710’ Echeveria pelusida Plant vigor. Morevigorous than Less vigorous than Echeveria pelusida with ‘TSAECH1710’with a less occurrence of leaf greater occurrence of necrosis. foliagenecrosis. General coloration Greyed-green, lightly Greyed-green with ared of the foliage. suffused pink, and margin. margined with a vibrantpink at and near the apex.

That which is claimed is:
 1. A new and distinct variety of Echeveriahybrid plant named ‘TSAECH1710’, substantially as described andillustrated herein.